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arXiv 0708.2644math.DGmath.FA
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格林函数共形不变量的$L^p$积分的最优单调性

Optimal Monotonicity of $L^p$ Integral of Conformal Invariant Green Function

Jie Xiao

摘要:

在$Ω$上的共形度量的总高斯曲率的正部分有限的条件下,通过一维Riemann-Stieltjes型幂积分的精确估计和Huber解析不等式和几何等周不等式,建立了以可求长简单曲线为边界的平面单连通区域$Ω$上的格林函数的$L^p$ -积分的最优单调原理的解析和几何形式.因此,新的解析和几何等周型不等式被发现。此外,当将几何原理应用于二维黎曼流形时,我们幸运地发现,诱导原理的$\{0,1\}$ -形式是完全非紧边界自由曲面上的Moser-Trudinger不等式和Nash-Sobolev不等式之间的中间形式,但等价于Nash-Sobolev/Faber-Krahn的特征值/热核上限/Log-面积平方增长的有限全高斯曲率曲面上的Sobolev不等式

英文摘要:

Both analytic and geometric forms of an optimal monotone principle for $L^p$-integral of the Green function of a simply-connected planar domain $Ω$ with rectifiable simple curve as boundary are established through a sharp one-dimensional power integral estimate of Riemann-Stieltjes type and the Huber analytic and geometric isoperimetric inequalities under finiteness of the positive part of total Gauss curvature of a conformal metric on $Ω$. Consequently, new analytic and geometric isoperimetric-type inequalities are discovered. Furthermore, when applying the geometric principle to two-dimensional Riemannian manifolds, we find fortunately that $\{0,1\}$-form of the induced principle is midway between Moser-Trudinger's inequality and Nash-Sobolev's inequality on complete noncompact boundary-free surfaces, and yet equivalent to Nash-Sobolev's/Faber-Krahn's eigenvalue/Heat-kernel-upper-bound/Log-Sobolev's inequality on the surfaces with finite total Gauss curvature and quadratic area growth.

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